Did you know that people can find out how many things there are by counting them? Young learners will explore numbers and how to count in Numbers, a title in the Building My Vocabulary series. This series uses familiar images to help children develop language skills. Building My Vocabulary is a series of AV2 media enhanced books. A unique book code printed on page 2 unlocks multimedia content. These books come alive with video, audio, weblinks, slideshows, activities, and more.